G3Dv3.1 0311, preventing Fm van Aalter

This layer gives the limits of occurrence of the Formation of Aalter, as defined in the Geological 3D model of the Flemish subsurface - version 3.1. The Geological 3D model was drawn up in the framework of the management agreement of the Flemish government with VITO, under the name VLAKO, on behalf of the Flemish Environmental Planning Bureau.